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          <td class="headerValue" width="80%" colspan=4><a href="../../../../../index.html">directory</a> - <a href="index.html">usr/include/c++/4.4.1/bits</a> - allocator.h</td>
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          <td class="headerValue" width="80%" colspan=4>mbi.info</td>
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          <td class="headerItem" width="20%">Date:</td>
          <td class="headerValue" width="20%">2010-01-23</td>
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          <td class="headerItem" width="20%">Instrumented&nbsp;lines:</td>
          <td class="headerValue" width="20%">10</td>
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          <td class="headerValue" width="20%">80.0 %</td>
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          <td class="headerItem" width="20%">Executed&nbsp;lines:</td>
          <td class="headerValue" width="20%">8</td>
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      <td><pre class="source">
<span class="lineNum">       1 </span>                : // Allocators -*- C++ -*-
<span class="lineNum">       2 </span>                : 
<span class="lineNum">       3 </span>                : // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
<span class="lineNum">       4 </span>                : // Free Software Foundation, Inc.
<span class="lineNum">       5 </span>                : //
<span class="lineNum">       6 </span>                : // This file is part of the GNU ISO C++ Library.  This library is free
<span class="lineNum">       7 </span>                : // software; you can redistribute it and/or modify it under the
<span class="lineNum">       8 </span>                : // terms of the GNU General Public License as published by the
<span class="lineNum">       9 </span>                : // Free Software Foundation; either version 3, or (at your option)
<span class="lineNum">      10 </span>                : // any later version.
<span class="lineNum">      11 </span>                : 
<span class="lineNum">      12 </span>                : // This library is distributed in the hope that it will be useful,
<span class="lineNum">      13 </span>                : // but WITHOUT ANY WARRANTY; without even the implied warranty of
<span class="lineNum">      14 </span>                : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
<span class="lineNum">      15 </span>                : // GNU General Public License for more details.
<span class="lineNum">      16 </span>                : 
<span class="lineNum">      17 </span>                : // Under Section 7 of GPL version 3, you are granted additional
<span class="lineNum">      18 </span>                : // permissions described in the GCC Runtime Library Exception, version
<span class="lineNum">      19 </span>                : // 3.1, as published by the Free Software Foundation.
<span class="lineNum">      20 </span>                : 
<span class="lineNum">      21 </span>                : // You should have received a copy of the GNU General Public License and
<span class="lineNum">      22 </span>                : // a copy of the GCC Runtime Library Exception along with this program;
<span class="lineNum">      23 </span>                : // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
<span class="lineNum">      24 </span>                : // &lt;http://www.gnu.org/licenses/&gt;.
<span class="lineNum">      25 </span>                : 
<span class="lineNum">      26 </span>                : /*
<span class="lineNum">      27 </span>                :  * Copyright (c) 1996-1997
<span class="lineNum">      28 </span>                :  * Silicon Graphics Computer Systems, Inc.
<span class="lineNum">      29 </span>                :  *
<span class="lineNum">      30 </span>                :  * Permission to use, copy, modify, distribute and sell this software
<span class="lineNum">      31 </span>                :  * and its documentation for any purpose is hereby granted without fee,
<span class="lineNum">      32 </span>                :  * provided that the above copyright notice appear in all copies and
<span class="lineNum">      33 </span>                :  * that both that copyright notice and this permission notice appear
<span class="lineNum">      34 </span>                :  * in supporting documentation.  Silicon Graphics makes no
<span class="lineNum">      35 </span>                :  * representations about the suitability of this software for any
<span class="lineNum">      36 </span>                :  * purpose.  It is provided &quot;as is&quot; without express or implied warranty.
<span class="lineNum">      37 </span>                :  */
<span class="lineNum">      38 </span>                : 
<span class="lineNum">      39 </span>                : /** @file allocator.h
<span class="lineNum">      40 </span>                :  *  This is an internal header file, included by other library headers.
<span class="lineNum">      41 </span>                :  *  You should not attempt to use it directly.
<span class="lineNum">      42 </span>                :  */
<span class="lineNum">      43 </span>                : 
<span class="lineNum">      44 </span>                : #ifndef _ALLOCATOR_H
<span class="lineNum">      45 </span>                : #define _ALLOCATOR_H 1
<span class="lineNum">      46 </span>                : 
<span class="lineNum">      47 </span>                : // Define the base class to std::allocator.
<span class="lineNum">      48 </span>                : #include &lt;bits/c++allocator.h&gt;
<span class="lineNum">      49 </span>                : 
<span class="lineNum">      50 </span>                : _GLIBCXX_BEGIN_NAMESPACE(std)
<span class="lineNum">      51 </span>                : 
<span class="lineNum">      52 </span>                :   /**
<span class="lineNum">      53 </span>                :    * @defgroup allocators Allocators
<span class="lineNum">      54 </span>                :    * @ingroup memory
<span class="lineNum">      55 </span>                :    *
<span class="lineNum">      56 </span>                :    * Classes encapsulating memory operations.
<span class="lineNum">      57 </span>                :    */
<span class="lineNum">      58 </span>                : 
<span class="lineNum">      59 </span>                :   template&lt;typename _Tp&gt;
<span class="lineNum">      60 </span>                :     class allocator;
<span class="lineNum">      61 </span>                : 
<span class="lineNum">      62 </span>                :   /// allocator&lt;void&gt; specialization.
<span class="lineNum">      63 </span>                :   template&lt;&gt;
<span class="lineNum">      64 </span>                :     class allocator&lt;void&gt;
<span class="lineNum">      65 </span>                :     {
<span class="lineNum">      66 </span>                :     public:
<span class="lineNum">      67 </span>                :       typedef size_t      size_type;
<span class="lineNum">      68 </span>                :       typedef ptrdiff_t   difference_type;
<span class="lineNum">      69 </span>                :       typedef void*       pointer;
<span class="lineNum">      70 </span>                :       typedef const void* const_pointer;
<span class="lineNum">      71 </span>                :       typedef void        value_type;
<span class="lineNum">      72 </span>                : 
<span class="lineNum">      73 </span>                :       template&lt;typename _Tp1&gt;
<span class="lineNum">      74 </span>                :         struct rebind
<span class="lineNum">      75 </span>                :         { typedef allocator&lt;_Tp1&gt; other; };
<span class="lineNum">      76 </span>                :     };
<span class="lineNum">      77 </span>                : 
<span class="lineNum">      78 </span>                :   /**
<span class="lineNum">      79 </span>                :    * @brief  The &quot;standard&quot; allocator, as per [20.4].
<span class="lineNum">      80 </span>                :    * @ingroup allocators
<span class="lineNum">      81 </span>                :    *
<span class="lineNum">      82 </span>                :    *  Further details:
<span class="lineNum">      83 </span>                :    *  http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt04ch11.html
<span class="lineNum">      84 </span>                :    */
<span class="lineNum">      85 </span>                :   template&lt;typename _Tp&gt;
<span class="lineNum">      86 </span>                :     class allocator: public __glibcxx_base_allocator&lt;_Tp&gt;
<span class="lineNum">      87 </span>                :     {
<span class="lineNum">      88 </span>                :    public:
<span class="lineNum">      89 </span>                :       typedef size_t     size_type;
<span class="lineNum">      90 </span>                :       typedef ptrdiff_t  difference_type;
<span class="lineNum">      91 </span>                :       typedef _Tp*       pointer;
<span class="lineNum">      92 </span>                :       typedef const _Tp* const_pointer;
<span class="lineNum">      93 </span>                :       typedef _Tp&amp;       reference;
<span class="lineNum">      94 </span>                :       typedef const _Tp&amp; const_reference;
<span class="lineNum">      95 </span>                :       typedef _Tp        value_type;
<span class="lineNum">      96 </span>                : 
<span class="lineNum">      97 </span>                :       template&lt;typename _Tp1&gt;
<span class="lineNum">      98 </span>                :         struct rebind
<span class="lineNum">      99 </span>                :         { typedef allocator&lt;_Tp1&gt; other; };
<span class="lineNum">     100 </span>                : 
<span class="lineNum">     101 </span><span class="lineCov">           2394 :       allocator() throw() { }</span>
<span class="lineNum">     102 </span>                : 
<span class="lineNum">     103 </span><span class="lineCov">             56 :       allocator(const allocator&amp; __a) throw()</span>
<span class="lineNum">     104 </span><span class="lineCov">             56 :       : __glibcxx_base_allocator&lt;_Tp&gt;(__a) { }</span>
<span class="lineNum">     105 </span>                : 
<span class="lineNum">     106 </span>                :       template&lt;typename _Tp1&gt;
<span class="lineNum">     107 </span><span class="lineCov">            332 :         allocator(const allocator&lt;_Tp1&gt;&amp;) throw() { }</span>
<span class="lineNum">     108 </span>                : 
<span class="lineNum">     109 </span><span class="lineCov">           2782 :       ~allocator() throw() { }</span>
<span class="lineNum">     110 </span>                : 
<span class="lineNum">     111 </span>                :       // Inherit everything else.
<span class="lineNum">     112 </span>                :     };
<span class="lineNum">     113 </span>                : 
<span class="lineNum">     114 </span>                :   template&lt;typename _T1, typename _T2&gt;
<span class="lineNum">     115 </span>                :     inline bool
<span class="lineNum">     116 </span>                :     operator==(const allocator&lt;_T1&gt;&amp;, const allocator&lt;_T2&gt;&amp;)
<span class="lineNum">     117 </span>                :     { return true; }
<span class="lineNum">     118 </span>                : 
<span class="lineNum">     119 </span>                :   template&lt;typename _Tp&gt;
<span class="lineNum">     120 </span>                :     inline bool
<span class="lineNum">     121 </span><span class="lineNoCov">              0 :     operator==(const allocator&lt;_Tp&gt;&amp;, const allocator&lt;_Tp&gt;&amp;)</span>
<span class="lineNum">     122 </span><span class="lineNoCov">              0 :     { return true; }</span>
<span class="lineNum">     123 </span>                : 
<span class="lineNum">     124 </span>                :   template&lt;typename _T1, typename _T2&gt;
<span class="lineNum">     125 </span>                :     inline bool
<span class="lineNum">     126 </span>                :     operator!=(const allocator&lt;_T1&gt;&amp;, const allocator&lt;_T2&gt;&amp;)
<span class="lineNum">     127 </span>                :     { return false; }
<span class="lineNum">     128 </span>                : 
<span class="lineNum">     129 </span>                :   template&lt;typename _Tp&gt;
<span class="lineNum">     130 </span>                :     inline bool
<span class="lineNum">     131 </span>                :     operator!=(const allocator&lt;_Tp&gt;&amp;, const allocator&lt;_Tp&gt;&amp;)
<span class="lineNum">     132 </span>                :     { return false; }
<span class="lineNum">     133 </span>                : 
<span class="lineNum">     134 </span>                :   // Inhibit implicit instantiations for required instantiations,
<span class="lineNum">     135 </span>                :   // which are defined via explicit instantiations elsewhere.
<span class="lineNum">     136 </span>                :   // NB: This syntax is a GNU extension.
<span class="lineNum">     137 </span>                : #if _GLIBCXX_EXTERN_TEMPLATE
<span class="lineNum">     138 </span>                :   extern template class allocator&lt;char&gt;;
<span class="lineNum">     139 </span>                :   extern template class allocator&lt;wchar_t&gt;;
<span class="lineNum">     140 </span>                : #endif
<span class="lineNum">     141 </span>                : 
<span class="lineNum">     142 </span>                :   // Undefine.
<span class="lineNum">     143 </span>                : #undef __glibcxx_base_allocator
<span class="lineNum">     144 </span>                : 
<span class="lineNum">     145 </span>                :   // To implement Option 3 of DR 431.
<span class="lineNum">     146 </span>                :   template&lt;typename _Alloc, bool = __is_empty(_Alloc)&gt;
<span class="lineNum">     147 </span>                :     struct __alloc_swap
<span class="lineNum">     148 </span><span class="lineCov">            180 :     { static void _S_do_it(_Alloc&amp;, _Alloc&amp;) { } };</span>
<span class="lineNum">     149 </span>                : 
<span class="lineNum">     150 </span>                :   template&lt;typename _Alloc&gt;
<span class="lineNum">     151 </span>                :     struct __alloc_swap&lt;_Alloc, false&gt;
<span class="lineNum">     152 </span>                :     {
<span class="lineNum">     153 </span>                :       static void
<span class="lineNum">     154 </span>                :       _S_do_it(_Alloc&amp; __one, _Alloc&amp; __two)
<span class="lineNum">     155 </span>                :       {
<span class="lineNum">     156 </span>                :         // Precondition: swappable allocators.
<span class="lineNum">     157 </span>                :         if (__one != __two)
<span class="lineNum">     158 </span>                :           swap(__one, __two);
<span class="lineNum">     159 </span>                :       }
<span class="lineNum">     160 </span>                :     };
<span class="lineNum">     161 </span>                : 
<span class="lineNum">     162 </span>                :   // Optimize for stateless allocators.
<span class="lineNum">     163 </span>                :   template&lt;typename _Alloc, bool = __is_empty(_Alloc)&gt;
<span class="lineNum">     164 </span>                :     struct __alloc_neq
<span class="lineNum">     165 </span>                :     {
<span class="lineNum">     166 </span>                :       static bool
<span class="lineNum">     167 </span><span class="lineCov">            180 :       _S_do_it(const _Alloc&amp;, const _Alloc&amp;)</span>
<span class="lineNum">     168 </span><span class="lineCov">            180 :       { return false; }</span>
<span class="lineNum">     169 </span>                :     };
<span class="lineNum">     170 </span>                : 
<span class="lineNum">     171 </span>                :   template&lt;typename _Alloc&gt;
<span class="lineNum">     172 </span>                :     struct __alloc_neq&lt;_Alloc, false&gt;
<span class="lineNum">     173 </span>                :     {
<span class="lineNum">     174 </span>                :       static bool
<span class="lineNum">     175 </span>                :       _S_do_it(const _Alloc&amp; __one, const _Alloc&amp; __two)
<span class="lineNum">     176 </span>                :       { return __one != __two; }
<span class="lineNum">     177 </span>                :     };
<span class="lineNum">     178 </span>                : 
<span class="lineNum">     179 </span>                : _GLIBCXX_END_NAMESPACE
<span class="lineNum">     180 </span>                : 
<span class="lineNum">     181 </span>                : #endif
</pre>
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